Question 1

Which of the following commands will write a message to the terminals of all logged in users?
A) bcast
B) mesg
C) print
D) wall
E) yell

Accepted Answer

The 'wall' command is used to send a message to all users currently logged into the system.

Question 2

Which function key is used to start Safe Mode in Windows NT?
A) F10
B) F8
C) F6
D) Windows NT does not support Safe Mode

Accepted Answer

Windows NT does not have a Safe Mode feature; it was introduced in later versions of Windows.

Question 3

What can the Logical Volume Manager (LVM) be used for? (Choose THREE correct choices.)
A) To create RAID 9 arrays.
B) To dynamically change the size of logical volumes.
C) To encrypt logical volumes.
D) To create snapshots.
E) To dynamically create or delete logical volumes.

Accepted Answer

LVM can be used to dynamically change the size of logical volumes, create snapshots, and dynamically create or delete logical volumes.

Question 4

Which of the following commands reboots the system when using SysV init? (Choose TWO correct choices.)
A) shutdown -r now
B) shutdown -r "rebooting"
C) telinit 6
D) telinit 0
E) shutdown -k now "rebooting"

Accepted Answer

The answer of Which of the following commands reboots the...

Question 5

Which run levels should never be declared as the default run level when using SysV init? (Choose TWO correct choices.)
A) 0
B) 1
C) 3
D) 5
E) 6

Accepted Answer

The answer of Which run levels should never be declared...

Question 6

Which of the following options is used in a GRUB Legacy configuration file to define the amount of time that the GRUB menu will be shown to the user?
A) hidemenu
B) splash
C) timeout
D) showmenu

Accepted Answer

The "timeout" option in a GRUB Legacy configuration file specifies the number of seconds the GRUB menu will be displayed before automatically booting the default entry.

Question 7

Which of the following are init systems used within Linux systems? (Choose THREE correct choices.)
A) startd
B) systemd
C) Upstart
D) SysInit
E) SysV init

Accepted Answer

systemd, Upstart, and SysV init are all init systems used within Linux systems.

Question 8

When removing a package, which of the following dpkg options will completely remove the files including configuration files?
A) --clean
B) --delete
C) --purge
D) -remove

Accepted Answer

The --purge option in dpkg is used to completely remove a package along with its configuration files.

Question 9

Which of the following information is stored within the BIOS? (Choose TWO correct choices.)
A) Boot device order
B) Linux kernel version
C) Timezone
D) Hardware configuration
E) The system's hostname

Accepted Answer

The BIOS stores the boot device order and hardware configuration settings, which are essential for the initial hardware setup and boot process.

Question 10

What information can the lspci command display about the system hardware? (Choose THREE correct choices.)
A) Device IRQ settings
B) PCI bus speed
C) System battery type
D) Device vendor identification
E) Ethernet MAC address

Accepted Answer

The answer of What information can the lspci command display...

Question 11

Which of the following commands overwrites the bootloader located on /dev/sda without overwriting the partition table or any data following it?
A) dd if=/dev/zero of=/dev/sda bs=512
B) dd if=/dev/zero of=/dev/sda bs=512 count=1
C) dd if=/dev/zero of=/dev/sda bs=440 count=1
D) dd if=/dev/zero of=/dev/sda bs=440

Accepted Answer

The command with bs=440 count=1 overwrites only the first 440 bytes of the MBR, which contains the bootloader, without affecting the partition table.

Question 12

Which of the following options for the kernel's command line changes the systemd boot target to rescue.target instead of the default target?
A) systemd.target=rescue.target
B) systemd.runlevel=rescue.target
C) systemd.service=rescue.target
D) systemd.default=rescue.target
E) systemd.unit=rescue.target

Accepted Answer

The correct kernel command line option to change the systemd boot target to rescue.target is "systemd.unit=rescue.target". This specifies the unit to start at boot time.

Question 13

When using rpm --verify to check files created during the installation of RPM packages, which of the following information is taken into consideration? (Choose THREE correct choices.)
A) Timestamps
B) MD5 checksums
C) Inodes
D) File sizes
E) GnuPG signatures

Accepted Answer

The `rpm --verify` command checks timestamps, MD5 checksums, and file sizes to ensure the integrity and authenticity of files installed by RPM packages.

Question 14

Which of the following environment variables overrides or extends the list of directories holding shared libraries?
A) LD_LOAD_PATH
B) LD_LIB_PATH
C) LD_LIBRARY_PATH
D) LD_SHARE_PATH
E) LD_RUN_PATH

Accepted Answer

LD_LIBRARY_PATH is the environment variable used to specify additional directories where shared libraries are searched for at runtime.

Question 15

Which of the following is correct when talking about mount points?
A) Every existing directory can be used as a mount point.
B) Only empty directories can be used as a mount point.
C) Directories need to have the SetUID flag set to be used as a mount point.
D) Files within a directory are deleted when the directory is used as a mount point.

Accepted Answer

A mount point is simply a directory where a filesystem is mounted. Any existing directory can be used as a mount point, regardless of whether it is empty or contains files. However, the contents of the directory become inaccessible while the filesystem is mounted.

Question 16

Which of the following commands brings a system running SysV init into a state in which it is safe to perform maintenance tasks? (Choose TWO correct choices.)
A) shutdown -R 1 now
B) shutdown -single now
C) init 1
D) telinit 1
E) runlevel 1

Accepted Answer

The answer of Which of the following commands brings a...

Question 17

In Bash, inserting 1>&2 after a command redirects
A) standard error to standard input.
B) standard input to standard error.
C) standard output to standard error.
D) standard error to standard output.
E) standard output to standard input.

Accepted Answer

In Bash, "1" represents standard output and "2" represents standard error. The ">&" operator is used to redirect one file descriptor to another. Therefore, "1>&2" redirects standard output (1) to standard error (2).

Question 18

During a system boot cycle, what program is executed after the BIOS completes its tasks?
A) The bootloader
B) The inetd program
C) The init program
D) The kernel

Accepted Answer

After the BIOS completes its tasks, the bootloader is executed to load the operating system into memory.

Question 19

Which of the following commands is used to update the list of available packages when using dpkg based package management?
A) apt-get update
B) apt-get upgrade
C) apt-cache update
D) apt-get refresh
E) apt-cache upgrade

Accepted Answer

The command "apt-get update" is used to update the list of available packages and their versions, but it does not install or upgrade any packages.

Question 20

What of the following statements are true regarding /dev/ when using udev? (Choose TWO correct choices.)
A) Entries for all possible devices get created on boot even if those devices are not connected.
B) Additional rules for udev can be created by adding them to /etc/udev/rules.d/.
C) When using udev, it is not possible to create block or character devices in /dev/ using mknod.
D) The /dev/ directory is a filesystem of type tmpfs and is mounted by udev during system startup.
E) The content of /dev/ is stored in /etc/udev/dev and is restored during system startup.

Accepted Answer

B) Additional rules for udev can be created by adding them to /etc/udev/rules.d/.D) The /dev/ directory is a filesystem of type tmpfs and is mounted by udev during system startup.

Exam 1: Linux Foundation Certified System Administrator

Which of the following commands will write a message to the terminals of all logged in users?

Which function key is used to start Safe Mode in Windows NT?

What can the Logical Volume Manager (LVM) be used for? (Choose THREE correct choices.)

Which of the following commands reboots the system when using SysV init? (Choose TWO correct choices.)

Which run levels should never be declared as the default run level when using SysV init? (Choose TWO correct choices.)

Which of the following options is used in a GRUB Legacy configuration file to define the amount of time that the GRUB menu will be shown to the user?

Which of the following are init systems used within Linux systems? (Choose THREE correct choices.)

When removing a package, which of the following dpkg options will completely remove the files including configuration files?

Which of the following information is stored within the BIOS? (Choose TWO correct choices.)

What information can the lspci command display about the system hardware? (Choose THREE correct choices.)

Which of the following commands overwrites the bootloader located on /dev/sda without overwriting the partition table or any data following it?

Which of the following options for the kernel's command line changes the systemd boot target to rescue.target instead of the default target?

When using rpm --verify to check files created during the installation of RPM packages, which of the following information is taken into consideration? (Choose THREE correct choices.)

Which of the following environment variables overrides or extends the list of directories holding shared libraries?

Which of the following is correct when talking about mount points?

Which of the following commands brings a system running SysV init into a state in which it is safe to perform maintenance tasks? (Choose TWO correct choices.)

In Bash, inserting 1>&2 after a command redirects

During a system boot cycle, what program is executed after the BIOS completes its tasks?

Which of the following commands is used to update the list of available packages when using dpkg based package management?

What of the following statements are true regarding /dev/ when using udev? (Choose TWO correct choices.)